Question 858572: Hong drove 405 miles using 20 gallons of gas. At this rate, how many gallons of gas would he need to drive 243 miles? Answer by JulietG(1812) (Show Source):
You can put this solution on YOUR website! If Hong drives 405 miles with 20 gallons of gas, his miles per gallon is 405/20, or 20.25.
To find out how much gas is needed to drive 243 miles, divide 243 by 20.25. =12 gallons.